- Home
- Crystal systems
- Orthorhombic
Orthorhombic crystal system
1,001 minerals
| Mineral | Chemical formula | Mohs hardness | Density |
|---|---|---|---|
| Jaskólskiite | CuₓPb₂₊ₓ(Sb,Bi)₂₋ₓS₅ (x~0.2) | 4.0 | — |
| Jaszczakite | [Bi₃S₃][AuS₂] | — | — |
| Javorieite | KFeCl₃ | — | — |
| Jeffreyite | (Ca,Na)₂(Be,Al)(Si₂O₇,HSi₂O₇) | — | — |
| Jerrygibbsite | Mn²⁺₉(SiO₄)₄(OH)₂ | — | — |
| Jimboite | Mn²⁺₃[BO₃]₂ | 5.5 | — |
| Jimkrieghite | Ca(C₂H₃O₃)₂ | — | — |
| Jimthompsonite | Mg₅Si₆O₁₆(OH)₂ | — | — |
| Johachidolite | CaAlB₃O₇ | — | — |
| Johnwalkite | — | — | — |
| Joliotite | (UO₂)CO₃·nH₂O | — | — |
| Jonesite | KBa₂Ti₂(Si₅Al)O₁₈·nH₂O | — | — |
| Jungite | Ca₂Zn₄Fe³⁺₈(PO₄)₉(OH)₉·16H₂O | 1.0 | — |
| Junitoite | CaZn₂Si₂O₇·H₂O | 4.5 | — |
| Juonniite | — | — | — |
| Kainotropite | Cu₄Fe³⁺O₂(V₂O₇)(VO₄) | — | — |
| Kamchatkite | KCu₃(SO₄)₂OCl | 3.5 | — |
| Kamenevite | K₂TiSi₃O₉*H₂O | — | — |
| Kampelite | Ba₆Mg₃Sc₈(PO₄)₁₂(OH)₆*₇H₂O | — | — |
| Kannanite | Ca₄Al₄(AlMg)(VO₄)(SiO₄)₂(Si₃O₁₀)(OH)₆ | — | — |
| Kantorite | K₂NaMg(SO₄)₂F | — | — |
| Karenwebberite | NaFe²⁺(PO₄) | — | — |
| Karibibite | Fe³⁺₃(As³⁺O₂)₄(As³⁺₂O₅)(OH) | — | — |
| Karlite | Mg₇(BO₃)₃(OH,Cl)₅ | 5.5 | — |
| Katiarsite | KTiO(AsO₄) | — | 3.30 g/cm³ |
| Kenhsuite | Hg²⁺₃S₂Cl₂ | — | — |
| Kentrolite | Pb₂Mn³⁺₂(Si₂O₇)O₂ | — | — |
| Kettnerite | CaBiCO₃OF | — | — |
| Kharaelakhite | (Cu,Pt,Pb,Fe,Ni)₉S₈ | — | — |
| Khinite | Pb²⁺Cu²⁺₃[Te₆+O₆](OH)₂ | — | — |
| Kilchoanite | Ca₆(SiO₄)(Si₃O₁₀) | — | — |
| Kimuraite-(Y) | CaY₂(CO₃)₄·6H₂O | — | — |
| Kirschsteinite | CaFe²⁺SiO₄ | — | — |
| Klebelsbergite | Sb₄O₄(SO₄)(OH)₂ | — | 4.42 g/cm³ |
| Knasibfite | K₃Na₄(SiF₆)₃(BF₄) | — | — |
| Koashvite | Na₆(Ca,Mn)(Ti,Fe)Si₆O₁₈ * H₂O | — | — |
| Kobellite | Pb₁₁(Cu,Fe)₂(Bi,Sb)₁₅S₃₅ | — | — |
| Kochsándorite | — | — | — |
| Koechlinite | Bi₂MoO₆ | — | 8.14 g/cm³ |
| Kolarite | PbTeCl₂ | — | — |
| Kollerite | (NH₄)₂Fe³⁺(SO₃)₂(OH)*H₂O | — | — |
| Kornerupine | Mg₃Al₆(Si,Al,B)₅O₂₁(OH) | — | — |
| Kotoite | Mg₃(BO₃)₂ | 6.5 | 3.11 g/cm³ |
| Kozoite-(La) | (La,Nd)(CO₃)(OH) | — | — |
| Kozoite-(Nd) | (Nd,La,Sm,Pr)(CO₃)(OH) | — | — |
| Kozyrevskite | Cu₄O(AsO₄)₂ | — | — |
| Krasnovite | Ba(Al,Mg)(PO₄,CO₃)(OH)₂ * H₂O | — | — |
| Kratochvílite | C₁₃H₁₀ | — | — |
| Kravtsovite | PdAg₂S | — | — |
| Krennerite | Au₃AgTe₈ | — | — |
| Krieselite | Al₂(GeO₄)F₂ | — | 4.02 g/cm³ |
| Kroupaite | KPb₀.₅[(UO₂)₈O₄(OH)₁₀]*₁₀H₂O | — | — |
| Krupkaite | PbCuBi₃S₆ | 4.0 | — |
| Krut'aite | CuSe₂ | 4.0 | 6.28 g/cm³ |
| Kryachkoite | (Al,Cu)₆(Fe,Cu) | — | — |
| Kudryavtsevaite | Na₃MgFe³⁺Ti₄O₁₂ | — | — |
| Kumdykolite | Na(AlSi₃O₈) | — | 2.64 g/cm³ |
| Kuranakhite | PbMn⁴⁺Te⁶⁺O₆ | — | — |
| Kurchatovite | Ca(Mg,Mn²⁺)[B₂O₅] | — | — |
| Kvanefjeldite | Na₄(Ca,Mn)(Si₃O₇)₂(OH)₂ | — | — |
| Lakargiite | CaZrO₃ | — | 4.60 g/cm³ |
| Lanthanite-(Ce) | Ce₂(CO₃)₃(H₂O)₆·2H₂O | — | — |
| Lanthanite-(La) | La₂(CO₃)₃(H₂O)₆·2H₂O | — | — |
| Lanthanite-(Nd) | Nd₂(CO₃)₃(H₂O)₆·2H₂O | — | — |
| Lapieite | CuNiSbS₃ | — | 4.96 g/cm³ |
| Larsenite | PbZnSiO₄ | — | 5.83 g/cm³ |
| Lasmanisite | Ag₁₂Pb₁₃Mn₁₁Sb₄₄S₉₆ | — | — |
| Lasnierite | (Ca,Sr)(Mg,Fe²⁺)₂Al(P[O,F]₄)₃ | — | — |
| Laurionite | PbCl(OH) | — | — |
| Lautite | CuAsS | — | 4.90 g/cm³ |
| Lavinskyite | K(LiCu)Cu₆(Si₄O₁₁)₂(OH)₄ | 5.0 | — |
| Lavoisierite | Mn²⁺₈[Al₁₀(Mn³⁺Mg)][Si₁₁P]O₄₄(OH)₁₂ | — | — |
| Lawsonite | CaAl₂Si₂O₇(OH)₂·H₂O | 7.5 | — |
| Lazarenkoite | (Ca,Fe²⁺)Fe³⁺As³⁺₃O₇ * 3H₂O | — | — |
| Lecontite | (NH₄,K)NaSO₄ * 2H₂O | — | — |
| Leesite | K(H₂O)₂[(UO₂)₄O₂(OH)₅]*₃H₂O | — | — |
| Lefontite | Fe₂Al₂Be(PO₄)₂(OH)₆ | — | — |
| Leishmanite | Ba(H₂O)₄[(UO₂)₃O₂(OH)₃]₂·3H₂O | — | — |
| Leningradite | PbCu₃(VO₄)₂Cl₂ | — | — |
| Lenoblite | — | — | — |